Multispectral Support

Bilang ang cersion 0.9.9 ODM ay may basic support para sa radiometric normalization, na nagge-generate ng reflectance orthophotos mula sa multispectral cameras. Ang Multispectral cameras ay nagca-capture ng multiple shots ng isang scene gamit ang iba't-ibang band sensor.

Hardware

Habang ating gusto na suportahan ang lahat ng camera, ang multispectral support ay dinevelop para magamit ang mga sumusunod na camera para ito ay gumana ng mas maayos:

Ang ibang camera ay maaari din gumana. Matutulungan mo kami na palawakin ang listahan sa pamamagitan ng sharing datasets na nakunan ng ibang camera.

Paggamit

Pinaprocess ang lahat ng imahe galing sa lahat ng bands ng sabay-sabay (wag paghiwalayin ang bands sa iba't-ibang folder) at ipasa ang --radiometric-calibration na parameter para ma-enable ang radiometric normalization. Kung ang imahe ay parte ng multi-camera na set-up, ang resulta ng orthophoto ay magkakaroon ng H bands, tig-isa ang bawat camera (+ alpha).

Learn to edit and help improve this page!

Sentera AGX710

While this sensor is not officially supported by ODM, the following workflow gives some good results.

  • all JPGs from the NDRE directory should be renamed with the exact following pattern 0000X_NIR.jpg. No extra '_' should be present in the file names ie 10_51_14_IMG_00008.jpg => 00008_NIR.jpg

  • all JPGs from the nRGB directory should be renamed with the exact following pattern 0000X_RGB.jpg. No extra '_' should be present in the file names ie 10_51_14_IMG_00023.jpg => 00023_RGB.jpg

  • All renamed XXXX_NIR.jpg and XXXX_RGB.jpg should be placed in the same folder

  • The following command could be used to create an odm_orthophoto.tif file

docker run  --rm -v  input_image_dir/:/code/images \
-v output_dir/odm_georeferencing:/code/odm_georeferencing  \
-v output_dir/odm_orthophoto:/code/odm_orthophoto \
-v output_dir/odm_report:/code/odm_report \
opendronemap/odm --auto-boundary

  • After the successful ODM processing, odm_orthophoto.tif bands names could be accurately renamed using contrib/ndvi/rename_sentera_agx710_multispectral_tif.py script

python3 contrib/ndvi/rename_sentera_agx710_multispectral_tif.py  output_dir/odm_orthophoto.tif

  • output_dir/odm_orthophoto.tif could be open with QGIS with correct band names